Finding the Fourth Proportional to 79,316.26, 109,457.70 and 43,505.62
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Solution
The fourth proportional to 79,316.26, 109,457.70 and 43,505.62 is: 60,038.45
Step by Step Solution
- Step 1: Write the proportion equation
79,316.26 : 109,457.70 = 43,505.62 : x - Step 2: Convert to fraction form
79,316.26/109,457.70 = 43,505.62/x - Step 3: Cross multiply
79,316.26x = 109,457.70 × 43,505.62 - Step 4: Simplify right side
79,316.26x = 4,762,025,102.27 - Step 5: Solve for x
x = 4,762,025,102.27/79,316.26 - Step 6: Final answer
x = 60,038.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.